Neslepe0rsm Neslepe0rsm

03-09-2016
Mathematics

contestada

what is the value of the expression 2x2 3xy – 4y2when x = 2 and y = –4? a. –80 b. –32 c. 32 d. 80

Respuesta :

nobillionaireNobley nobillionaireNobley

05-09-2016

2x^2 + 3xy - 4y^2 when x = 2 and y = -4
= 2(2)^2 + 3(2)(-4) - 4(-4)^2 = 2(4) + (-24) - 4(16) = 8 - 24 - 64 = -80

Answer Link

Otras preguntas

what was a direct effect of the grange’s businesses failing in the late 1800s? the grange’s influence weakened. the grange organized a political party. the gran

conflict management is dealing with conflict in either a _________________.

Choose the definition of: Export A. to send out B. to keep mobile C. To send in D. to move about

the cost of ken s car wash was $ 23.95 if he wants to give his detailer a 15 % tip about how of tip should he leave

Do all caterpillars turn into butterflies?

Solve the system of equations. –5x + 3y + 2z = 19 x + 4y + 3z = –27 15x – 9y – 6z = –55

In which decade did the U.S. commit to and achieve the goal of landing an astronaut on the Moon? A. 1940s B. 1960s C. 1980s D. 1990s User: How far has manned sp

plz help me I don't know if I did this right

what is the rhetorical function of the analogy in this sentence? my friends words cut me the way a knife slices through an apple. A. to convey joyful feeli

The enrollment at a university increased from 8000 students in 2001 to 12,000 students in 2002. what is the percent increase in enrollment? a. 5% b. 10% c. 2